Two-part wheel-rim for tires.



Bv1 L ULTMANNS.`

TWO PART WHEEL RIM FOR TIRES.

APPLICATxoN FILED Ams, |916.

1,282,457; Patented oct. 22,4 i918.

. *u mi.

6 fnf/:for:

BERNHARDT J OLTMAN NS, OF PEORIA, ILLINOIS.

TWO-PART WHEEL-RIM FOR TIRES.

.To all ywhom t may concern:

Be it known. thatl I, BERNHARDT J. .O LT- MANNs,Icitizen of the United States, residing at Peoria, in the county of Peoria and State ofl Illinois, have invented certain new and useful Improvements in Two-Part WheeL Rims for Tires; and I do hereby declare thatthe following is a full, clear, andexact description of the invention, which will enmake without difliculty `ders-toed I have drawing wherein,

able others skilled in -the art to 'which it uppertains to make and use the same.. 4

This invention relates to improvements in vehicle Wheels and pertains more particularly to an improvement in awheel rim for holding a pneumatic or other tire.

The main object of the invention is to -t'urnish a wheellrim for holding a tire, said rim being of` two parts so constructed that the `tire can be readily slipped from the wheel and as readily replaced in an exceedingly simple manner,

.Another object is to furnish a wheel rim of two parts, one part adapted to remain at* tached to the Wheel, the other being removable whereby the tire may be readily removed and replaced without effort or without stretching said tire, and so adapting the removable ortion of the rim that it may be readily an positively forced from its posi` tion by the means that secures it while in use.

Another object is to provide e two l)ieee rim that may be attached to u wheel o4 any so lthat an owner may equip his Wheel wlth a very convenient form of r1m from which the rubber tire may be readily removed and all without chang` ing the form of the felly, merely boring a few holes.-

Another object of the invention is to improve upongand furnish a more simple form .of tire-holder than those of which I am "aware To"the end that my invention may be unprovided the accompanying Figure 1 is a side elevation of a Wheel showmg my improved rim f in position thereon.

Fig.` 2 is a cross section'of e wheel-telly p and my two part vrim in position thereon.

Specification of Letters Patent.

A. and,

Fig 3 is a similar view showing a modification of the securing means.

Fig. 4 is an elevation of a portion ofthe removable part of the rim showing its inner side or that which bears against'the `felly;

Fig. 5 is an elevation of the outer side of the other or stationary portion of the rim.

It has been the practice heretofore to perlnanently secure a one-piece rim of a clencher tire, for example, upon the wheel-felly, said rim including' at each side a flange outwardly curved in such a way as to receive the beads of the tire, the construction being such that t-he tire, bymeans of tools, must be stretched with great difficulty in order to` force it over one of the said flanges in attuching or removing itT4 The work of removing the tire is the most difiicult of the two operations especially if said tire has been on the wheel for a considerable length of time and adheres to the rim. i'

The difficulty is made greaterby reason of the factthat the rubber after a time loses Patented Oct. 22, 1918. Appncation med A prn 5, 191e. serial No. 89,137,

its elasticity and will not as readily stretch as when new.

In viewof these difficulties and in order i that a tire may easily and quickly be,A removed for repairs on the road, and also in order to remove as much as possible the chance of rupturing the air tube as sometimes happens during the usual methods of removal already referred to, I have provided the construction or its equivalent now to be described.

My device requires no special form of telly, as betere intimated, any usualwheel of and dispensing with the usual tire hold` ing rim which my structure replaces, all of the `simplest form so .constructed and appointed ythat it is thoroughly strong throughout due to its. peculiar form.

A indicates the Wheel-telly` Brepresents one portieri of a 4rim of my improved forni which comprises a fiat ring or band C, for

l example, that may be shrunk upon the felly or otherwise secured'fthereto and having at its outer edge a flange'D including a groove E to receive one of the beads of the tire, not shown, it also having -a flange F to overlie a portion .of the felly as indicted in 2, which includes a series of enlargements at its outer side provided each with a threaded bore H, Fi 2, to receive a bolt J extendin throng the felly and terminating at its t readed extremity in said bore.

The opposite side of the ring or band C preferably projects beyond the fellyas indicated at C and said bolt J likewise projects at that side of the telly, being provided with a flan e K which may normally bear against said elly,r

Outward from the flange K is a shank portion L terminating in the bolt head M, the latter. bearing upon the outer side of a removable rim portion N similar in form to the flange D mentioned, and oppositely disposed to receive the opposite bead of the tire. Said portion N is recessed to receive the projecting portion C as shown the bottom of the recess being preferably beveled downwardlyand inwardly as indicated at'jP.

The said portion N also has a flange "(9`- -corresponding to F of the opposite portion of the rim to bear against the felly, and is provided with enlargements R corresponding to the enlargements G described, and

the flange and each said enlargement is furnished with an open notch S inward from which is a recess T in position to receive the described flange K of the bolt. The distance between the said flange K and the bolt head M corresponds to the thickness of the flange Q, and its enlargement R- as clearly shown in Fig. 2, and since in this form of the device the surface of the flange K which bears upon the felly is flush with the inner surface of said flange Q, both said flanges bear firmly upon the said felly.

Preferably the ring or band C is ex tended beyond the felly into the described part C in order that the flange O may pass beneath it and that the downwardly inclined bevel at P can draw the portion N downwardly firmly in position and thus providing wie entire ring' or band for the tire. This at edge of the'ring also provides a solid abutment for the shoulder of the portion N distant from the broad flat surface of the felly against which the flange G) rests, the whole structure thus forming an absolutelyv rigid arrangement.

In the normal position of the parts when holding the tire in place the extension C' lies in the recess next to the flange O and abuts against the resulting surface of the part N roviding a snug fit and furnishing an abso utely rigid struct-ure, it bein observed that the beveled surface P resu ts in exactly centering the rim portion N upon the said extension C as said portion is drawn to its seating position.

The rim B maiT be shrunk upon or other` wise secured to the felly and since it will be immovable in the'operation of attaching and detaching the rim portion N the latter can be backed awa from the felly b loosening the bolts little b little.. Svince this said portion N is a sti ,frigid ring it is, of course, necessary that it be moved a like distance at all points around the felly and suc cessively loosening the bolts will accomplish the desired backing away. Should the removal of the portion N under ordinary conditions be very difficult by reason of a rusted joint, for example, the movement of the flanges K in turning the bolts will result in a positive and easy loosenin of the portion. The loosened and latera ly shifted osition of the parts is indicated in bro en. lines in Fig. 2,.

Fig. 3 is a modification of the means employed for securing the rim portion vN in position. In place of the bolt J with its ange K a bolt 2 extends through the felly and has a threaded part 3 near its head 4 which engages the threaded portion of the bore H that receives it. The other end of the bolt is threaded at 8 and 6 indicates a sleeve bored and threaded to engage the same, said sleeve being adapted to lie in the notch S described, while a flange 5 lies in the enlarged recess portion T described. In addition, the sleeve has a head 7 to engage the outer surface of said portion N. The operation of removal of the part'N is iden-A tical with that described with reference to Fig. 2. In this instance in unscrewing the sleeve the flange 5 is backed oil' of the bolt and any inclination of the latter to turn results in bein tightened at the threads 3 Within the en arg'ement G. The portion N is thus easily moved and comes entirely off of the felly A as all of the sleeves are removed from the bolts.

It is vclear that since the portion N in either form is removable it exposes the tire and its bead at that side so that it is not necessary to stretch said tire in order to remove it as is necessary with the old forms of one-piece rim, On thecontrary it may." be sli pcd directly ofi of the portion C and may e as easily replaced with its air tube inclosed, and is rmly held no matter whatV the form of bead may be.

In order to remove the portion N- of th first described form all of the bolts J must be removed from the felly .but in the :form last described the bolts 2 remain in position while the sleeves 6 are removed therefrom with said portion N.

i In loosening the bolt J or the sleeve 6 the flanges K, 5, respectively positively move .the portion N whereas in the tightening oping the tireover a rim is detrimental to the lao fabric of a tire andthe tube is in danger of being punctured or cut by using a tool for the removing and replacing act. But in furnishing a two-piece rim the tire can be readily Withdrawn and replaced without the/'/ need of using a tool.

The rim may be placed on any Wheel in use by removing the rim supplied with it and boring the necessary holes in thefelly to receive the securing bolts. Since the rim in Fig. 2 is secured on the felly by shrinkaing or other suitable means the removal of the bolt does' not matter but the forni in Fig. 3 is more convenient for the reason that only thesleeves are necessary to be removed in. place of the entire "Tielt, thus mak- .ibng a more quickly operated affair.

I am fully aware of the so called quicle detachable 'forms of rims but these require special structures Which when new operate with comparative ease but after use they present dlilieulties not easily overcome, and furthermore, include more or less complicated structures and parts which are lacking in a device of the forni described herein which is directly attached to the Wheel-felly.

By providing the bevel P for the portlon `N thatfportion is easily made to seat against 4the extension C.

It is not my intention to be confined to tlie exact y arrangement shown Y since minor changes may be made without departing i from the spirit and intent of the invention.

'strains imposed upon them by lateral- For instance the flanges of the two por tions of the rim overlie the greater portion of the sides of the felly and thus have greater bearing thereonto better take the thrusts.

Again,` the rim portions may include v 1,282,457 A y changes of one kind or another that will i best serve the purpose for which they are intended. l

I Iaving thus described my invention, l

claim Y In a vehicle Wheel, in combination with its felly, a ring or band covering the treadv side thereof and lixed relatively and permanently thereto including at one edge a flange portion to receive and hold one side of the base ot' a tire and including also a'ilange at that edge abutting against. the felly, the ring or band projecting beyond the opposite side of the folly,l a detachable rim portion at said opposite side of the felly including a flange to abut against the felly at that side sides of the flangeof said portion and adaptin presence of two Witnesses.

ed to Vtighten the latter against the rim and toseparate it therefrom, thethreads at each end of the bolts being cnt in the 'same direction, the flange of the detached rim ,por-

tion having a seriesy of notches opening to- Wardthe center of rotation 'of thewhel, thel bolts extending therethrou h.

In testimony WhereoflI a x BERNHARDT J. OLTMANNS. Witnesses:

LoUIsn H. Mason,

L. M. Tnoanow.

my signature,l 

